Download or read book Simple Machines | Energy, Force and Motion | Kids Ages 8-10 | Science Grade 3 | Children's Physics Books written by Baby Professor and published by Speedy Publishing LLC. This book was released on 2020-12-31 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: Learn about the complex mechanics that come into the creation of simple machines. Discussed in the pages of this book are the six types of simple machines - screw, inclined plane, wedge, pulley, lever, wheel and axle. There will be detailed explanation of how each of these machines are created, and used to make work easier. This educational book is ideal for third graders.